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Stack #4586646
| Question | Answer |
|---|---|
| What is homeostasis? | The body’s ability to maintain a stable internal environment despite external changes. |
| Which two systems control homeostasis? | The nervous system and endocrine system. |
| What is negative feedback? | A response that reverses a change in a controlled condition (like lowering high blood sugar). |
| What is the main function of the cell membrane? | To regulate what enters and leaves the cell (selective permeability). |
| What is diffusion? | The movement of molecules from high concentration to low concentration. |
| What type of transport requires ATP? | Active transport. |
| What organelle produces ATP? | The mitochondria. |
| What is cellular respiration? | The process that converts glucose and oxygen into ATP, CO₂, and water. |
| Which molecule is the cell’s main energy source? | ATP |
| What is the primary function of the nervous system? | To detect stimuli, process information, and control body responses. |